Type: code issue

Using the "block all unencrypted requests" feature on Firefox, I often see that the addon redirects me to the "HTTPS Everywhere noticed you were navigating to a non-HTTPS page, and tried to send you to the HTTPS version instead..." message on pages that would've otherwise displayed certain Firefox warnings.
This happens for example:

1. On any non existing site. Put some bogus in the address bar with HTTP nowhere enabled and instead of FF showing the "Server Not Found" page, the addon redirects you.
2. On sites using self signed certificates, where Firefox would usually warn you and give you the option to (temporarily) accept the certificate.

I imagine it happens on any occasion where Firefox would display such a warning page.

The problem with this behaviour is that when HTTPS everywhere redirects me, I have no clue if the site indeed does not support HTTPS, or if it's just non-existant, uses a self-signed certificate, or has any other issue that would cause Firefox to warn me before actually loading the site.